Home / 91,767.27-126,639.70-51,481.90

Finding the Fourth Proportional to 91,767.27, 126,639.70 and 51,481.90

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Solution

The fourth proportional to 91,767.27, 126,639.70 and 51,481.90 is: 71,045.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,767.27 : 126,639.70 = 51,481.90 : x
  2. Step 2: Convert to fraction form
    91,767.27/126,639.70 = 51,481.90/x
  3. Step 3: Cross multiply
    91,767.27x = 126,639.70 × 51,481.90
  4. Step 4: Simplify right side
    91,767.27x = 6,519,652,371.43
  5. Step 5: Solve for x
    x = 6,519,652,371.43/91,767.27
  6. Step 6: Final answer
    x = 71,045.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.